Muscles Of Canine Forelimb Flashcards
What is the synsarcosis?
Muscular sling supporting torso between forelimbs
Role of extrinsic muscles
Attach forelimb to the body
What are intrinsic muscles?
Muscles with origin and insertion within the limb
Role of synsarcosis in locomotion
Allows craniocaudal translation across the thorax
Spinal extension
Increases stride length
Name extrinsic muscles of the forelimb
Trapezius Omotransversarius Brachiocephalicus Latissimus dorsi Pectorals
Name deep extrinsic muscles of the forelimb
Rhomboideus
Serrated ventralis
What role does the glenohumeral joint have?
Flexion and extension
Very little adduction or abduction
Describe the canine glenohumeral joint
Joint capsule supported by lateral and medial glenohumeral ligaments
What ligaments are present in the glenohumeral joint?
Lateral glenohumeral ligament
Median glenohumeral ligament
Where is the canine glenohumeral joint?
Shoulder joint
What is the normal abduction angle of the glenohumeral joint?
25-30 degrees
What angle can a medial glenohumeral ligament tear lead to?
Around 70 degrees
Which glenohumeral ligament is larger?
Medial
What glenohumeral joint is Y shaped?
Medial
What provides significant support to the glenohumeral joint?
Muscles